x^4+x^2-1946546=0

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Solution for x^4+x^2-1946546=0 equation:


Simplifying
x4 + x2 + -1946546 = 0

Reorder the terms:
-1946546 + x2 + x4 = 0

Solving
-1946546 + x2 + x4 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '1946546' to each side of the equation.
-1946546 + x2 + 1946546 + x4 = 0 + 1946546

Reorder the terms:
-1946546 + 1946546 + x2 + x4 = 0 + 1946546

Combine like terms: -1946546 + 1946546 = 0
0 + x2 + x4 = 0 + 1946546
x2 + x4 = 0 + 1946546

Combine like terms: 0 + 1946546 = 1946546
x2 + x4 = 1946546

The x term is x2.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x2 + 0.25 + x4 = 1946546 + 0.25

Reorder the terms:
0.25 + x2 + x4 = 1946546 + 0.25

Combine like terms: 1946546 + 0.25 = 1946546.25
0.25 + x2 + x4 = 1946546.25

Factor a perfect square on the left side:
(x2 + 0.5)(x2 + 0.5) = 1946546.25

Calculate the square root of the right side: 1395.186815448

Break this problem into two subproblems by setting 
(x2 + 0.5) equal to 1395.186815448 and -1395.186815448.

Subproblem 1

x2 + 0.5 = 1395.186815448 Simplifying x2 + 0.5 = 1395.186815448 Reorder the terms: 0.5 + x2 = 1395.186815448 Solving 0.5 + x2 = 1395.186815448 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = 1395.186815448 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = 1395.186815448 + -0.5 x2 = 1395.186815448 + -0.5 Combine like terms: 1395.186815448 + -0.5 = 1394.686815448 x2 = 1394.686815448 Simplifying x2 = 1394.686815448 Take the square root of each side: x = {-37.345505961, 37.345505961}

Subproblem 2

x2 + 0.5 = -1395.186815448 Simplifying x2 + 0.5 = -1395.186815448 Reorder the terms: 0.5 + x2 = -1395.186815448 Solving 0.5 + x2 = -1395.186815448 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x2 = -1395.186815448 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x2 = -1395.186815448 + -0.5 x2 = -1395.186815448 + -0.5 Combine like terms: -1395.186815448 + -0.5 = -1395.686815448 x2 = -1395.686815448 Simplifying x2 = -1395.686815448 Reorder the terms: 1395.686815448 + x2 = -1395.686815448 + 1395.686815448 Combine like terms: -1395.686815448 + 1395.686815448 = 0.000000000 1395.686815448 + x2 = 0.000000000 The solution to this equation could not be determined.This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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